Ventilator.



J. SYLVAN.

VENTILATOR,

APPLICATION FILED AUG.29. 191s.

Patema Feb.11,1919.

J. SYLVAN.

VENTILATOB. APPLICATION FILED AUG.29, 191a.

1,29 3 ,975. Patented Feb. 11,1919. v

3 SHEETSSHEET 2.

1. SYLVAN.

VENTILATOR.

APPLICATION FILED AUG.29, 1918.

Patented Feb. 11, 1919.

3 SHEET$-SHEET 3 fizz/ @7151 gse z/z djyjua7zd 9 M C UNITED STATES PATENT @FFMFK.

JOSEPH SYLVAN', OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALFTO LOUIS A. RUDA,

. OF CHICAGO, ILLINOIS.

VENTILATOR.

Specification of Letters Patent.

Patented Feb. 11, 1919.

To all whom it may concern:

Be it known that I, Josnrrr SYLVAN, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Ventilators; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in ventilators for roofs, skylights and the like, and consists of the matters hereinafter described and more particularly pointed out in the appended claims.

One of the objects of the invention is to provide a ventilator made upof a comparatively few parts, which are so formed and so arranged with respect to each other, that when a current of air passes through the ventilator, asuction action is produced in the ventilator, which will suck or draw the air out of the room or chamber with which the ventilator is connected, and properly ventilate the same.

Another object of the invention is to so arrange the various parts, that the ventilator will exclude the entrance of wind, rain and snow into the room or chamber being ventilated and will efficiently drain itself of such moisture as will form on its interior surfaces.

These objects of the invention, together with the many advantages thereof, will be more apparent as I proceed with my specification.

In the drawings: V

Figure 1 represents a view in perspective of a ventilator embodying my invention.

Fig. 2 represents a detail View in-perspective of a wing plate embodied in the improved ventilator.

Fig. 3 represents a vertical, transverse, sectional view through the ventilator in a plane indicated by the line 3-3 of Fig. 1.

Fig. 4 represents another vertical, transverse sectional view through the same, the plane of the section being indicated by the line 4-4 of Fig. 1.

Fig. 5 represents a top plan view of the ventilator. I

Fig. 6 represents a horizontal, sectional view through "the ventilator, the plane of the section being indicated by the line 66 of Fi 1.

Re erring now in detail to that embodiment of my invention illustrated in the accompanying drawings :-l0 indicates as a whole, the improved ventilator which is preferably made entirely of sheet metal. 11 indicates the usual, upright, tubular stem of the ventilator which is provided with a flange 12 at its bottom for the attachment of the ventilator as a whole to the roof or skylight of the room or chamber to be ventilated.

13 indicates the conical cover or top of the ventilator, whichis spaced a suitable distance above the top end of the stem and is supported therefrom in a manner soon to appear. As shown, said top is made substantially rectangular in plan, is longer in one direction than it is in the other, and has rounded corners 14. (See Fig. 5.)

15, 15 indicate opposed, upright weather shields which extend across the shorter ends of the top 13 and which are secured to the under side of said top at said ends, in any suitable manner. The bottom ends of said shields "extend into a plane below that of the top end of the stem 11 and said bottom ends of said shields are spaced from and connected to said top end of said stem by substantially horizontally disposed plates or walls 16 which are of a width less than the diameter of the stem 11. Said plates or walls are slightly inclined downwardly from the shields 15 toward the stem 11 and act both as barriers against upward air currents at these points, and as drain plates for such moisture as may lodge thereon. The

- marginal edges 17 of said shields are rounded to follow the curvature of the rounded corners 14 of the top 13 and are of an arouate length equaling the arcuate length of said rounded corners 14.

20, 20 indicate opposed wing plates (see Figs. 2 and 4) which are arranged in a plane between and preferably at right angles to the plane of the weather shields 15. Said wing plates are fixed at their top ends to the under side of the cover or top 13 in planes spaced from the longer sides of said top, and are fixed at their bottom ends to the top end of the tubular stem 11 by rivets as shown in Figs. 1 and 6, so that said cover or top is held in proper relation to said stem. The construction thus far described, produces a rigid ventilator capable of withstanding high wind pressure without warping or collapsing;

Each wing plate 20 includes a tapering middle web 21 that diverges downwardly and outwardly from top to bottom, and

tapering side parts 22, each of which has a lateral, marginal flange'23, that extends vertically from top to bottom of; said wing.

plate. The side parts 22 and the web 21 of each wing plate; blend into each other or come together at the top, in an arc 00110811- tric with the stem 11, as shown in Figs; 1- and 5. The bottomends of thewe'bs 21 and side parts 22 of each wing plate 20, together with the top end of the stem 11, provide Thus such air aswillenter one of months on one side of the ventilator, w1ll be directed away from the top of the'stem by the said deflector to fOllOW up the interior surfaces of the web 21 and side-parts 22 of the associated wing-plate- (see- Fig.4)

to meet and coact with the aircurrent passing horizontally through the ventilator by" means of the spaces or passageways 26 (see Fig. 6) defined by the edges of the curved margins 17 of the weather shields and the outer surfaces of the side parts 22 and flanges 23 of the wing plates 205 Said deflectors also act to prevent the entrance of rain and snow through the'mouths 2 L directly into the-stem 11. 7

Such air currents as pass horizontally through the ventilator will suck out and carry with them, that air which is located in the stem 11 and reduce the pressure there in behind said wing plates and tend to ex haust the air in sa1d stem and produce an upward current of air therethrough, from the room or chamber beingventilated.

By reason of the somewhat tortuous path of the wind or moving ai-r' current passing horizontally through the ventilator, no air,

rain or snow can back down through the stem and into the room being-ventilated;-

My improved ventilator consists of but few parts-which may be easily made and assembled, and when soassembled will operateelficien'tly for the intended purpose; The partsare so arranged asto-brace one another so that the ventilatorreadily withstands.

wind pressure without warping} or becoming out of'shape.

While in describing my invention, I havereferred to certain details of construction and arrangement of parts, I do not wislrto;

be-limited thereto, except as may bepo'i n'ted for roofs, skylights and the like, comprising in combination, an upright, tubular stem, a top spacedfvertically above said stem, a pair of opposedweather shields fixed at their upper, ends to said top and at their lower ends to said stem, and a pair of opposed wing plates arranged at a right angle to said shields a'n'dfixed to the sides of said top and converging; downwardly toward and outwardly away from said stem, said wing plates being attachedratwtheir bottom ends; to said-stems i 2'. A ventilator. for" roofs*, ,skylights and: i

the like, comprisingyin: combination; an ups:

right, tubular; stemgs, a; substantially-.1rectane gular top spaced vertically above said stem, a pair. of oppositely disposed, vertically; arranged: weathershieldsvfixed at; their upper ends toitheendsofi said top, plates connect? ing tlISllOWQI ends of said "slnelds with and marginalpartsgxand aapairiofi opposeda wing plates arranged at: right angles to; said shields" and: fixed. to the sides of said: top" and convergin downwardly toward and" outwardly away from said -stem,-.said; wing plates being fixed at theirs bottom ends to said stem and havingrupright marginal parts engaging" with the plates connecting the" shlelds' to said stem.

3: A- ventilator for roofs, skylights and the like, comprising-in combination,.an up:- right tubular stem, alsubst-antially-:rectangm lar top longer than-it is wide spaced vertically above said stem, a pain of? opposed weather shields fixed to the ends-aoi saiditop and to the stem respectively,- and a -pair of opposed win plates arranged in at. lane at right angles to said shieldsandlfixe ito-the sides of saidtop and convergingidownwardly toward and outwardly: fr'om sa-idi stem, the bottom ends of: said win'g plates being fixed to the top ends of said stem aqnd de"- fining imouths opening into thea ventilator, and deflector plates inthemouthsdefined by the bottom ends ofisaid wi ng platess 1 the like, comprising in combination, an upright 'tubular' stem, a tops spaced vertically above said stem;- a pair 01? opposed weathen shields fixed to said top, plates connecting 5 holding them in spaced relation from the ton' end of said stem, said shields havingrcunvede the bottom of said shields with holdingv them in spaced relation outwardly away from said stem; a-pair of opposedwin'g plates fixed to said topand converging downwardlytoward and outwardly away' from: said stem to provide mouths'openin g into said ventilator, said W lIlg plates including up right marginal flanges which are fixed-to the top end of the stem, and deflector platesfixed to thetop' of said: stem and-"extending into said mouths and partially restricting:

the same:

5. A ventilator for roofs, skylights and the like, comprising in combination, an upright,tubular stem, a substantially rectangular top, longer than it is wide, spaced vertically above said stem, said top having rounded corners, two opposed, vertically arranged Weather shields fixed to said top at its ends, said shields having marginal edges curved to conform with the rounded corners of said top, plates connecting said shields with and holding them in spaced relation outwardly away from said stem, two opposed wing plates fixed to said top near its sides, said wing plates being arranged at right angles to said shields and converging downwardly toward and outwardly away from said stem to provide mouths, and deflector plates fixed to said stem and extending outwardly into said mouths and partially restricting the same.

In testimony that I claim the foregoing as my invention, I aflix my signature in the presence of two witnesses, this 24th day of August, A. D. 1918.

JOSEPH SYLVAN.

Witnesses:

LOUIS A. Runs, T. H. ALFREDS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Istents,

Washington, D. 0. 

